Mini Plug-in Heater Recomendations

Here is a link to the previous thread on this subject. I have only used mine once, but it does a good job, heats a space quickly.
www.gransnet.com/forums/ask_a_gran/1316279-Heat-Pal?msgid=29698945

My husband bought 2 weeks ago, they were delivered last week but we are away.
I will let you know next week what we think.

I was wondering if they are worth investing in I keep getting adverts on Fb